Means for transmitting energy between shafts



' May 2o, 1930. H. GROB 1,759,784

MEANS TRANSMITTING ENERGY BETWEEN SHAFTS Filed July 24, 1925 direction.

Patented Mayrzo, 1930 `HUGO anon, on BnnLimcnRMANY, .ttssprcrnonIToitnAivrnoozEl vnNNooTscHAi? 1mi-Q t -V l CHINEEIEENEN APBARATEN FABRIEKEN,:QE UTRncHT, NETHERLANDS .i

. MEANS"noRjTnNsMITTINGlENERGY BETWEEN'sHAFTs .t

f Application mea 311157,24, 1925,fseria1 NQ.v 45,928, ana in Germnyiuly'zi," i'eaasfV This invention relates to ameansfor transmittingwenergy., fp It is generally l i most reliable means .for transmitting energy f o from one shaft to another lconsists in toothed gearing. The luse ofthe latter, however, is accompanied by-great ditliculties ifthe relaf,`

tive positions of the two shafts are variable, as occurs, forgexample, in'thecaserof the lo lighting dynamo of' acar. driven by 'the car raX1e,`or in the caseof {electric locomotives.'- v Inithiscase an additional movable member -is'required intermediate: of the twoA shafts, Y transmitting the force from the yone shaft to.

`Y the other. i l i A basic and already known embodiment of such an intermediate member is characterized n by the fact that the same iscapable o f beingy f vdisplaced both against the' endoftlieoneVV shaft, aswell asthe end ofthe' other shaft, in` each casein a certain direction, these two directors being, at right `anglesto each Bother..

Ifjthe intermediate member is composed of one singlev piece, the same must be capable .l ofsliding motion in relation to' each shaft end. Iffor thepurpo'sel oiff'avoiding sliding motion Vjournals are employed,i t is necessary tomake the intermediate' member composed l of two singleparts, which are rotary, andare 4hinged on to each otherandtothel twolshaft couplings of this kind the journals'about whichwthe rotary parts are capableof oscil-V lation arearranged rparallel tothe main shaft f of the coupling, a `fact which in manyfcases .leads'to undesirable' dimensions ft'ijradial Now the invention consistsintheffact that 40 fthe oscillatory motionof theone intermedin atefportion occurs about anaXiswhichis'at rightangles to 'theaxis kofthe shaft of the coupling; .Y rlhisl resultsfin the fact'that vthe links, `which engagefwith these journals,zas

f A4K5 sume a position whichis parallel to the shaft,`i. e., require verylittle space in 'al radial.

direction;- and furthermore that one pairof f linksr maybe dispensed with;y -As compared, therefore, with'the hitherto knowna-rrange-j `505 ments, the points of origin offorce Abothfas admitted that one ,of thev l v ble of beingV used in practice if the force is ends; In the case of `'all hitherto known ,y

verse forces do not occurV inthe Ybearing of 'applied 'tothebne as well as tothe'other;

shaft are situated in two` diiferent planes,A

Fig.,l shows one formnof embodimentin 'I il.

A represents one `of thetwoshaftsyin is transmittedto the hollowshaft B mounted- Lthe case of the present example-given-the movable vehicle axle, from which the energy in lixed manner on the vehicle frame. .The Y shaft B possesses two symmetrically disposed journals or hinge pins-@upon which engages `a ring E having. two arms D. At the other Y ends the arms are vagain connectedlby means.;`

lof `a second, oval ringF, and carry two pins H ,engaging in the rods' G. They are thus n Y i on theaXle A. l

, All rotary motion koit' theaXle A is accord-V ingly transmitted without play to theY hollow shaft B by means of the double ring member mitting the force the hollow shaft 'may be cons? positively connected through the joint J with', ,i thed'ouble-armed support L firmly mounted is preferably located as near as possiblextof.A

the'bearing plane. y I

The arrangement shown here is ,only capaalso transmitted 'perfectly evenly in the Vcase greatextentlaterally, i; e.,`only if the ang'n f lar velocity ofthe driven shaft eXactlycoin-v cides at yall times with that ofthe driving without rotating, is displaced inthe ysame shaft; This is equivalent to the requirement Q for vthe hollow shaft to remain at `rest inthe' i case of stationary drive, if the other axle,

manner as occurs later `when running Simple considerationwillshow-thatthisaci a tually is the case. In the same manner trans' the hollow shaft atl anypo's'ition'.

What I claim is :t f

Y A device for transmitting being substantially coaxial and Vm'ountedto.Y permit lateral movement thenebetween, comi-g ne'fgy-baweena I Y drivingand driven rotaryshafts,bothshafts. Y 1 n icqff,

erf-

Y. prsing{tWoV links pivotally mounted tone i of theshafts atoneend ffthe'linksfa. rigid 1' intermediate memberto whchthe'ther ends `ofrthe links are pivot'ally mounted, andmeans VV piv'ot'ally, vrmountingVV vthe j intermediate member- `to the otherf ofrsaidf.shaftssaid,means Y Y perniittngj'movementofthe: intermediate f member ina directionvat'right inglesitofthe' "frotry shaftshnd said tWQ links being mount-f e1- ed ,tolpemnftJofirelntve -i-lateral; displacement j Y* Y -fof thitwolshaftsin'mdirectionwhichislverf,, x y

' tical bothtothe axialldirectioniofthe shafts I as Well astth-directinfef movement ofthe intermediaternember.;

i i GRUB# 'f 

